Some benchmarks that i completed was 1.construct a loop, 2.determine dissipated energy on task,3.determine initial height to make it over a hill,4.Design sketch,5.build roller coaster prototype ,and 6.build final roller coaster. This benchmark helped me learn that when ever diss. energy starts it would never end. I also learned that the at at-bats helped me with the previous at bats and with my performance task this helped me understand that there will always be gravity in the beginning and when it goes up it gains kinetic, gravity, and diss. when it lands it has more diss and less kinetic and gravity

The reason to why i picked the starting height to be 50 was because it was the height I needed for the marble which was 10 kg to have enough speed for it to go all around the hoop which it was 20 while gaining kinetic energy and enough diss for it to go up location c which was 10, the hill it gain more diss and it lost a bit of gravity and kinetic and it lost 66%.For the starting height I would’ve picked 60 and for the loop it would’ve been 15 and for the hill it would’ve been 5. The reason to why I would’ve picked these numbers would because the starting height was higher than the loop meaning it would gain more kinetic which would have more force for the marble to go all around the loop the reason to why I picked 5 was because it would make it go up with more diss that it gain in location b and it would loss a bit more kinetic and gravity energy.

Identify and copy/paste the equation in your code that determines the velocity of the object after the collision. NewV1=-10

Explain how your equation uses conservation of momentum./

How well does your collision model meet the task constraints? How well does your code model your storyboard?

NewV2=(m1*v1+m2*v2-newV1)/m2;

These show the after the collision because it states that those ate the new velocity which is “NewV.” This equation shows conservation of momentum because the momentum is the same as the before and after you could find this by using the equation p=m*v. The project contains two objects,a model board and the link to the sketch pad.

Describe your process for revising and developing your collision model, including at least one example of something you changed or improved.

Something that i changed in my code was the size of object one because it was the same size as object 2. I also fixed the two objects because instead of them objects bouncing they used to just cross each other another thing i changed was the speed of the two objects, object 2 goes faster and bounces off object one.

How successful was your process for making your model? What will you try to improve when you do projects in the future?

I would try to fix object one so it would be able to move and also bounce off object 2. And maybe try to use explosion instead of them bouncing off each other.

They bounce and they don’t just pass each other so i think it meets all the project constraints.

What feedback did you receive, who did you receive it from, and how will you use it?/What are your next steps for improving your collision mode?

Khianna said “your collision is good, you meet all the constraints and you can clearly see what is happening. You should maybe make it a little faster.” I would change the velocity instead of the velocity being 10 i should make it 15 so it would be a little faster and i agree with the objects working and bouncing off each other at a point.

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